On Thu, May 19, 2005 at 04:06:19PM +0200, Florian Schmidt wrote:
  I don't know of any _reliable_ constant delay
(jitter free) way to
 schedule events happening during period N for playback during period
 N+1. If anyone does, please enlighten me. 
Call jack_frame_time() when you get the event, and add one period.
Put the event in a queue, together with this timestamp.
In your jack_process() : set t0 = jack_last_frame_time(), then handle
all events that fall before t0 + period. The sample index for the
event is its timestamp - t0  (or O if this happens to be negative).
--
FA